Kang Haeun

LCA/LCCI Platform Frontend Development

React, Redux, Redux-Toolkit, React-Flow, MUI, Data Grid Pro, TailwindCSS, Storybook, Webpack/Vite

End-to-end frontend design and implementation for an integrated Life Cycle Assessment (LCA) creation, analysis, and management platform

• Large-scale LCA/LCCI Domain Service Development: Built full-process UI and features: LCA creation, process-level data input, Mass Balance, process flow diagrams, LCI DB integration
• Large-scale LCA/LCCI Domain Service Development: Mapped complex LCA domain concepts (allocation logic, Cut-off, LCI DB, process trees, flow diagrams) into practical user flows and UI/UX
• Large-scale Input/Validation UI & Common Components: Built high-volume data input screens with Data Grid Pro and standardized grid components
• Large-scale Input/Validation UI & Common Components: Developed complex interactive UIs for raw materials, energy/water/utilities, BOM, and Mass Balance
• Process Flow Diagram - Full Feature Development: Built canvas-based Flow Editor components
• Process Flow Diagram - Full Feature Development: Implemented graphic editor-level features: node create/delete/select/auto-layout/drag/style customization

POPLE Carbon Credit·Marketplace·Registry Platform

React, Next.js, Nest.js, MUI, Chakra UI, Context API, Google Maps, i18next

End-to-end frontend development and operations for an integrated carbon credit issuance, trading, and registry platform

• Platform Refactoring & FE Architecture: Restructured sign-up logic and resolved corporate file upload issues
• Platform Refactoring & FE Architecture: Implemented multilingual terms page/API handling
• UI/UX & Common Components: Developed shared PDF Viewer component
• UI/UX & Common Components: Built PageHeader component, replacing legacy Breadcrumb
• Carbon Credit Features: Built credit detail page from scratch (including VRC)
• Carbon Credit Features: Implemented credit list Excel export

Web3-based Service Frontend Development

React, Next.js, Metamask, Web3.js, Amplitude

Frontend development for a Web3 wallet-based asset management service

• Web3 Integration & Wallet: Built Metamask connection feature and wallet address validation logic
• Web3 Integration & Wallet: Implemented polling-based messaging for transaction status notifications
• User Page UI/Features: Redesigned main page with multilingual image swapping (KO/EN/JA)
• User Page UI/Features: Developed My Assets, Connection, Transaction History, and Tax pages
• Admin & Analytics: Developed Admin User detail page and user management menu
• Admin & Analytics: Implemented project showcase feature with display controls

Energy IoT App - Device API Integration

React, React Native, Redux, Redux-Saga, Expo

• Integrated APIs to display user-owned device lists
• Connected user EV app with ENode platform

STO Trading Platform Frontend Development

React, Next.js, NextAuth, Redux, Redux-Toolkit, Chakra UI, Storybook

• Implemented general and corporate member login with NextAuth
• Integrated CRUD APIs for projects, news, and more
• Applied slider and text animation effects with responsive UI

Official Website Frontend Development

React, Next.js, Chakra UI, TailwindCSS

• Developed responsive website with News and Chart API integration
• Built carousel and chart components

Rooftop Investment Platform Development

Vue, Quasar, Pug, Stylus, JavaScript, Chart.js, Kakao Map

• Integrated backend REST APIs and built entire service UI with Pug and Stylus
• Created statistical graphs for investment quantities, power output, and generation with Chart.js
• Utilized Kakao Map API for rooftop location display with SVG map visualization
• Developed social sharing features for KakaoTalk, Facebook, and more

Official Website Frontend Development

Vue3, Firebase

• Developed responsive UI and deployed static assets via Firebase

Promotional Landing Page Development

Vue, Firebase

• Developed responsive UI and deployed static assets via Firebase

Partner Site (Admin) UI Development

JavaScript, jQuery, HTML/CSS, SCSS, PHP/Laravel

• Developed entire service UI with HTML and CSS
• Created chart UIs for order and delivery statistics using Chart.js

Popple Tour Package Reservation UI Development

React, Redux-Toolkit, Styled-Component

Hyundai Motor Admin UI Modifications & Maintenance

Vue3, SCSS